Audio Compression Codecs

Audio compression algorithms were created to enable audio to
be saved more effectively. A compressor codec takes a original uncompressed
audio track and reduces its size. Because of the smaller size, the speed requirements
for the storage devices are greatly reduced. To play back the compressed audio
data, a decompression algorithm is used to decompress the data so it can be
heard.

Ogg Vorbis is a new audio compression format. It is roughly
comparable to other formats used to store and play digital music, such as
MP3, VQF, AAC, and other digital audio formats. It is different from these
other formats because it is completely free, open, and unpatented.